Method for accurate in vivo delivery of a therapeutic agent to a target area of an organ

A method for accurately delivering a therapeutic agent to a target area of an organ of a living subject, comprising the steps of:

• prior to delivery of said therapeutic agent, obtaining a 3D image of a portion of an interior of said living subject and displaying said 3D image as a displayed image, said displayed image comprising said target area and a delivery path to said target area;
• introducing a catheter into said subject and obtaining a real time positional indication of said catheter in said subject, and incorporating said real time positional indication of said catheter into said displayed image and therewith guiding said catheter along said delivery path to said target area;
• while said positional indication of said catheter in said displayed image indicates said catheter is at said target area, injecting said therapeutic agent into said target area via said catheter, said target area being visible in said displayed image;
• and
• causing the injected therapeutic agent to be visible in said displayed image, and monitoring distribution of said therapeutic image in said displayed image relative to said target area.